Affiliation: | 1. LIMAV - Interdisciplinary Laboratory for Advanced Materials, BioMatLab, Federal University of Piauí, Teresina, 64049-550 PI, Brazil;2. LIMAV - Interdisciplinary Laboratory for Advanced Materials, BioMatLab, Federal University of Piauí, Teresina, 64049-550 PI, Brazil Department of Mechanical Engineering, Federal University of Piauí, Teresina, 64049-550 PI, Brazil Post-graduation of Materials Science and Engineering, Federal University of Rio Grande do Norte, Natal, 59078-900 RN, Brazil;3. Department of Physics, Federal University of Piauí, Teresina, 64049-550 PI, Brazil;4. Post-graduation of Materials Science and Engineering, Federal University of Rio Grande do Norte, Natal, 59078-900 RN, Brazil;5. Special Technologies Center, National Institute for Space Research, São Jose dos Campos, 12227-900 SP, Brazil;6. LIMAV - Interdisciplinary Laboratory for Advanced Materials, BioMatLab, Federal University of Piauí, Teresina, 64049-550 PI, Brazil Department of Physics, Federal University of Piauí, Teresina, 64049-550 PI, Brazil;7. Post-graduation of Mechanical Engineering, Federal University of Rio Grande do Norte, Natal, 59078-900 RN, Brazil;8. Post-graduation of Materials Science and Engineering, Federal University of Rio Grande do Norte, Natal, 59078-900 RN, Brazil Post-graduation of Mechanical Engineering, Federal University of Rio Grande do Norte, Natal, 59078-900 RN, Brazil |